Fire-extinguisher.



J. R. GAMMETER.

FIRE EXTINGUISHBR.

APPLIGATION FILED MAlms, 1912.

L05/,538 Patented Apr.1,1913.

JOHN R. GAMMETER, OF AKRON, OHIO.

FIRE-EXTINGUISHER.

resinas. l Y

Specification of Letters Patent.

Patented Apr. 1, i913.

Application -filed March 23, 1912. Serial No. 685,656.

fo all ywhom 15 '1f/my romcrn:

Be it known that I, JOHN R. GAMMn'rnR, a citizen of the United" States,and a resident of the city of Akron, county of Summit, and State oflOhio, have invented certain new and useful Improvements inFire-Extinguishers, of which the following is a specification.

T his invention relates to. portable or hand fire extinguishers and isdesigned to provide a fire extinguisher or fire extinguisher packagewhich is very efficient, but in which the container for the fireextinguishing sub stance'is of only nominal cost and can be thrown awaywhen emptied. My invention consists in a collapsible metal tube iilledwith a fire extinguishing substance adapted to be squirted from anorifice in the tube by the collapsing thereof. The tube may be made ofany suit-able material, preferably a soft metal such as seamless drawnlead, or lead and tin. One end of the tube is provided with a suitablenozzle through which the contents of the tube may be squirted. Forcollapsing the tube I employ a cylindrical hand-roller of suit-ablediameter secured to the end of the tube, remote from the nozzle, uponwhich the tube may be rolled up and thus collapsed. Any fireextinguishing agent capable of being squirted from the tube may beemployed, for example, carbon tetrachlorid, or a derivative thereof.

' 1n the accompanying drawings which form a.l part of thisspecification, I haveshown certain preferred embodiments of myinvention, but 1- do not desire to be limited to the detailed structuresillustrated any further than as specified in the claims here'- untoappended. n

V.In these drawings Figure 1 is a side elevation of a fire extinguisherembodying my invention; Fig. 2 is a longitudinal section o the same;Fig.,3 is a sectional view of av portion of the end of the extinguishershown in Fig. 2,' showing the cap or nozzle closed; Figs. 4, 5 and 6 aresectional views illustrating modified forms of nozzles and closurestherefor.

Referring to the drawings in detail, the numeral l designates the bodyof my fire extinguisher, this body being preferably formed of seamlessdrawn tubing of lead or other flexible metal, or othei` material ofsimilar' properties. One end of this tube is flattened, as indicated at2, and, in the preferred form of my-invention, is secured to a roller 3of wood or other suitable material, and of sufficient diameter to beconveniently grasped by the hand of the operator. r1`he end of the tubemay be secured to this roller in any desiredI manner, for example, bybeing inserted in a slot 4 therein, the extreme end being secured in acentral enlargement 5 in the roller byvbeing wrapped aboutra wire orother filler 6. The opposite end of the tube 1 is closed by a head 7,preferably of conical shape, and at the apex of which is the nipple 8through which is formed the orifice 9. For closing the orifice 9,various devices may be used, for example, as shown in Figs. 1, 2 and 3,a cap or nozzle 10 is used, this cap screwing on the nipple 8, which isexternally threaded. The cap is preferably provided with a flangedextension 11 which may be knurled if desired, and by which the cap maybe easily screwedin and out to close or open the orifice. The oriiice 9terminates at its outer end in a conical seat 12, while the cap 10carries al plug or valve 13 having a conical end .adapted to fit theconical seat 12. The cap is normally screwed down so as to force theconical end of the plug 13 against the seat 12, and thus close theorifice 9, as shown in 3, the orifice being opened by screwing the capout a short distance, as shown in Fig. 2. 1n order to avoid thenecessity of entirely removing the cap 10, which might result in itsmisplacement or loss, the cap 10 is preferably provided with an opening14C in its end, from which the extinguishing agent escaping through theorifice 9 will be squirted. The fire extinguisher may be provided withan eye 15, or other suitable device by which it may be hung in anyconvenient location,

if desired. The operation of my fire extinguisher will cap 21. The canow be readily understood, and as will be apparent, is very simple.v Incase of re, it is simply necessary for the operator to grasp the body 1of the extinguisher in one hand, and unscrew the cap 10 a few turns, soas to withdraw the plug-13 from itsseat 12, and permit the extinguishingagent to pass through the orifice 9 and the opening 14. The operatorthen slowly rotates the spool or roller 3, thus putting pressure uponthe contents of the tube' and causing the same to be ejectedforciblthrough the opening l14: in a stream which may be directed at the tireby simply pointing the extinguisher in the proper direction. Owing tothe comparatively large cross-section of the tube 1 and the smallness ofthe opening 14 a very gradual rotation of the roller 3 wi serve -tomaintain adequate pressure upon the contents of the tube. If the fire isextinguished before the tube is emptied, it is simply necessary to screwthe cap back into the position shown in Fig. 3, when the extinguishermay be then hung up and the remainder of its contents used-when occasiondemands.` I

Fig. 4 shows a modified formof closure for. m extinguisher, in which thetube is `provi ed with a screw-threaded nipple 16 terminating in theplug 17 having a conical end 18, The orifice 19 through the 'nipple'leads 'into a transverse opening 20 extending through the plug, by whichthe contents of the tube are conducted to the interior of the isprovided with'a conical opening 22 W ich fits over the conical end 1'8of the plug 17 when the cap is screwed down, thus closing the tube. Inorder to permit the contents of the tube to be squirted upon the lire,the cap is screwed out a few turns, which permits the extinguishingfluid to-escape around the conical end 18 and through the orifice 22,these parts actingv as a nozzle'and serving to'form theiiuid into awell-defined 'et.

In Fi 5 I ave shown another form of closure or my re extinguisher, inwhich the screw-threaded nipple 23 is provided with lan eccentricallylocated orifice 24 and with a central depression formin a conical seat25. The cap 26 is provide with a conical plug 27 adapted to t theconical seat 25 when the cap is screwed down. A .central opening 28 isformed through the cap and through the plug 27, the contents of t e reextinguisher passing through the orifice 24, between the plug 27 and theseat 25 when the cap is screwed out, the i'luid being projected from theextinguisher through the opening 28.

In- Fig. 6 I have shown a closure for my extinguisher adapted to perm-itthe autor matic, ejection of the extinguishing fluid upon theapplication of pressure thereto by ignited the winding up of the tubingupon theagainst the` seat 12. When pressure is put upon the fluidcontained in the tube, the plug 32 is lifted from its seat, thuspermitting the iuid to pass into the interior of the cap 29 and outthrough the opening 30. When the pressure upon the contents'of the tubeis relieved, the spring 31 will automatically force the plug 32 backupon its seat. The springvl is preferably so arranged as to hold theplug 32 in position, and for this purpose one end of it is permanentlyse-4 cured to the cap 29 by means of the collar 33, while the other endof the spring is secured about a stem 34/ projecting from the plug 32.

Another' advantage of my extinguisher when made of thin soft metal as.described, is that in case of emergency it may be torn poured quicklyover any local fire. For example, .if a womans clothing becomes she mayherself tear open the extinguisher and pour the extinguishing fluid onher dress, and thus` uickly smother the flames. This method o procedureis entirely impracticable with any of the extinguishers of the pump typenow on the market. 'Moreover, this characteristic of my extinguishermakes it absolutely impossible for the same to fail to operate at thecritical moment as it can always bevpunctured and the extinguishing Huidutilized. It is practically impossible, however, for my extinguisher tofail to operate in the intended kmanner as there is no pump plunger tostick, no valves to get out of order, and in order extinguisher shows atall times whether or` not it, is properly charged andin condition to beused.'

Having thus described my'invention, .I claim: `-f

'open without diiiculty and the contentsl ishing, fluid and then replaceen used 1. A tire extin uisher comprising a collapsible tube iille withafre extinguishin agent and havin a nozzle at one end thereo the otherend o the tube being attached to a hand roller of large diameter bywhich the tube may b'e collapsed and Wound up so as end thereof, .theother end of the tube being l to put pressure upon the contents ofthe-tube flattened and secured in aslot in a Cylindrical and cause thesame t0 be' squirted from' the hand roller ofsubstantial diameter.nozzle. JOHN GAMMETER.

5 2. A fire extinguisher comprlsing a col- Witnesses: 4

lapsible metal tube lled with a fire eX- JAMES-S-W1LS0N,tingui'shingfagent and having a. nozzle at one EDMUND QUINCY MOSES.

